BREEDING AND SEED PRODUCTION OF AGRICULTURAL CROPS
Relevance. In connection with the annual epiphytotic development of peronosporosis (Pseudoperonospora cubensis (Berk. and Curt.) Rostow. on cucumber and the absence varieties immune to this disease, it is advisable to create and cultivate precocious varieties and hybrids that can form the main part of the yield before the period of mass spread of the disease. In order to rationally use the cucumber gene pool long-term research of the world collection is carried out to search of sources of yield, precocity and resistance to peronosporosis.
Material and methods. The studies were conducted at Volgograd Experimental Station of VIR (Volgograd province). The research material was 370 cucumber accessions from the world collection of VIR. Evaluation of accessions on a complex of signs was carried out according to methodical guidelines of VIR.
Results and conclusions. Long-term study of cucumber accessions of various geographical origin showed that the duration of the interphase period "mass seedlings - the first harvest of fruits" did not differ significantly in samples of different geographical groups, most of them belong to the early ripening. It was found that the duration of the fruiting period depended on the degree of resistance of plants to peronosporosis: the higher the resistance of the variety or hybrid, the longer the fruiting period. A number of precocious, yielding hybrids and varieties, as well as samples with a long period of fruiting and relative resistance to peronosporosis, were allocated. The perspective material for the decision of separate problems in breeding of a cucumber is recommended.
Actuality. Industrial technologies of vegetable crops cultivation, including squash cultivation, a lot of attention is paid to the uniformity of seeds by morphometric traits as a condition allowing to use the precision technologies.
The goal of the study is to determine specificities of measured polyvariance the seeds of Cucurbita pepo var. giramontia Duch. under changes of climate conditions in Transnistria.
Materials and methods. The studies were carried out at the experimental plot of Pridnestrovian State University (Tiraspol) in 2005-2012. Objects of studies – 5 lines (166/5; 19/84; 98/5; 5Б; 48/20) of squash. Morphometric traits of seeds: mass, width, length, thickness were evaluated in the sample of 100 seeds. Mass of the seed was evaluated with help of torsion scales with exactness to 0,001 g. Width, length, thickness were mesuared with microscope MBS-10 with exactness to 0,1 mm. squash plants were treated with water solutions of the preperation Micefit in concentrations 10 and 100 mg/l in the phase of "2-3 true leaves" and "6-7 true leaves", standard is water treatment.
Meteorological conditions (temperature, amount of precipitation) the year of seed reproduction were characterized by the data of Tiraspol Agrometeorological Station. Hydrothermal regime the growing of squash plants was characterized by the hydrothermal coefficient (CHT) of Selyaninov.
Results. The nature of changes in temperature and precipitation over 7 years (2005-2012 periods) were reflected increased anomality of weather conditions in Transnistrian region. First of all, it concerns the quantity and the intensity of precipitation during the formation and maturation of squash seeds. Distribution decades of total precipitation and temperatures caused extremely uneven hydration: CHT variation ratio was 29.2-61.3%. Almost all periods of study were stressful for plants and led to the dimensional polyvariance of squash seeds. The variation of morphometric traits (coefficient of variation) is depended on changes in the hydrothermal regime of the growing season. It has a non-linear character and was genotypically caused. Applying the preparation Micefit had a significant effect on the manifestation of traits of squash seeds and its interaction with meteorological factors determined their modifying ability in the following order: mass (78,2%)→ length (56,6%)→ thickness (43,7%)→ width (40,4%).
Relevance. Vegetable seed production is a key step in using of new varieties/hybrids in agriculture. The main problem of vegetable seed production is the negative effect of environment to the seed productivity of plants and seeds quality. Usually, vegetable seeds produce in greenhouses in Russia, but special greenhouses are necessary for the obtaining of qualitative seeds. Possibilities different types of greenhouses for seed production of new special tomato varieties for multi circle hydroponics have been studied at this paper.
Materials and methods. Materials of study: plants, fruits and seeds of two new tomato varieties Natasha and Timosha. Influence type of plants cultivation on the yield, plant productivity, the middle mass of the fruit and seeds quality have been studied at the two factorial experiment, which has been carried out with help of random repetitions method with 4 repeats. Seed quality has been evaluated by GOST 32 592-2013. Experimental data have been calculated with dispersion analysis by B.A. Dospekhov (1985).
Results. It has been established, that the environment of “Rishel” greenhouse (France firm “Rishel”) with polycarbonate cover is optimal for the seed production of new tomato varieties Natasha and Timosha for multi circle hydroponics. The productivity and the yield of seed’s plants were significantly higher in “Rishel” greenhouse, than in the usual greenhouse. The middle mass of one fruit at the plant was significantly higher too. The quality of seeds was in accordance to GOST 32 592-2013 for qualitative tomato seeds (2014).
Relevance. The evaluation of adaptive ability of varieties is an actual direction in selection. Phenotypic plasticity of legume crops, in particular green bean, in Siberian region has not been studied enough. There is a need to evaluate grade samples for adaptability and stability, as highly and medium adaptive varieties can realize their genetic potential of productivity in extreme continental climate of Western Siberia.
Materials and methods. On the basis Department of Selection, Genetics and Forestry, Novosibirsk State Agrarian University (2015-2019), long-term evaluation of grade samples of green bean of different ecological and geographical origin with a bush type of growth was carried out. Of particular interest are signs that have a significant impact on crop productivity. The signs were studied: number of beans on plant, weight of beans from plant, weight of one bean, yield capacity. The objective of the study is to evaluate the adaptive ability and stability of common bean varieties in the conditions of Siberian region.
Results. The conditions of Western Siberia are suitable for cultivating vegetable beans on a green spatula and seeds. It has been established that, based on the weight of one bean, the coefficient of variation has a negative value. This indicates a low variability of the trait depending on the natural and climatic conditions, which allows selection of breeding valuable varieties for this parameter. As a result of the study, 6 genotypes of the crop, combining high productivity and environmental resistance, were selected. It was established that varieties Veronika and Darina can be referred to non-plastic samples. Samples could diversify breeding material of the crop and show the value according to specific features in edaphic-climatic conditions of Western Siberia.
VEGETABLE PRODUCTION
Relevance. Squashes are a promising culture, and the recent work of breeders allow us to uncover large reserves to improve their nutritional and dietary qualities. The dietary value of zucchini is due to the easy digestibility of all carbohydrates, which allows them to be used in the production of canned foods. Canned snacks and candied fruits are produced from zucchini. The most important quality of the varieties we study is their cylindrical shape, allowing mechanization of the cleaning operation.
Methods. Therefore, the purpose of this work was to use zucchini of different degrees of ripeness for the preparation of candied fruit with the least loss of products.
Results. As a result of research conducted at the All-Russian Research Institute of Irrigated Vegetable and Melon-Growing in the Astrakhan Region, it was found that zucchini fruits of different degrees of maturity can be used to make candied fruits, but the highest yield was obtained from mature squash, and amounted to 654 kg from the Sosnovsky variety , in the Orange variety 696 kg from one ton of prepared raw material, while in the Orange variety of candied fruits it was obtained 42-64 kg more than in the Sosnovsky variety, depending on the degree of ripening STI. The tasting committee rated candied fruits obtained from the fruit of the zucchini of the Orange variety higher by 0.3-0.5 points than from the Sosnovsky variety. In terms of chemical composition, candied fruits prepared from the raw material of ripe zucchini fruits exceeded 1.2-1.5 times - from unripe fruits. Ready candied fruits can be used as an independent form, as well as for the preparation of other types of products in the food industry.
Relevance. This study aimed to improve fruit set and plant performance to increase tomato productivity by studying the effect of plant growth regulators on tomato plants.
Methods. A specific experiment has been carried out to study the effect of plant growth regulators Milagro (1% indol-3-butric acid) and Atlet active substances indol-3-butric acid and chloromequate chloride with applied doses (0.6 M/L, 1.0 M/L and 1.5 M/L) and (1.0, 1.5 and 2.0 M/L) on growth and physiological characteristics of plants (Big Beef F1). The experimental design was a Complete Randomized Blocks Design. Both Hemo bles was applied three times (spraying on plants at 30 DAP, spraying on plants at 60 DAP and spraying on plants 90 DAP).
Results. The obtained results showed that, Applying Milagro (1% indol-3-butric acid) had the highest significant Plant height (80.13, 128.77 and 239 cm), number of leaves/plant (18.0, 34.67 and 44.3) and stem diameter (1.07, 1.5 and 2.03 cm), fruit weight (122.0 and 136 g), Flower Clusters number in the plant (4.64, 13.33 and 16.33) and Fruits Number (61.67, 62.0 and 67) Over the three years of study. The results were analyzed using one-way analysis of variance (ANOVA) followed by Tukey’s HSD test with α = 0.05 with the help of MINITAB (v. 19.0) program.
Relevance and methods. This study aimed to improve fruit set and plant performance to increase tomato productivity by studying the effect of plant growth regulators on tomato plants. A specific experiment has been carried out to study the effect of plant growth regulators Hemo bles active substances (850 g/kg) Humic Acid with applied doses (250, 500 and 700 ppm) and Magictone active substances (5-12.5 g/kg) naphthalene acetic acid and naphthalene acetamide with applied doses (250, 500 and 700 ppm) on growth and physiological characteristics of tomato plants (Big Beef F1). The experimental design was a Complete Randomized Blocks Design. Both Hemo bles and Magictone were applied three times (spraying on plants at 30 DAP, spraying on plants at 60 DAP and spraying on plants 90 DAP).
Results. The obtained results showed that, Applying Humic Acid “Ener-850” had the highest significant fruit weight (137 g) during the two seasons. Also using “Magictone” had the highest significant Flowers number (48.1), Fruits Number (35.1), Flower Clusters number in the plant (13.6) and Fruits Number (54.6. while (Humic Acid) improved tomato fruit’s quality during improve Dry weight (75.1 g) of Arial parts, Ascorbic Acid, level of Vitamin C and Carotenoids contents (4.82 mg 100 g-1). The results were analyzed using one-way analysis of variance (ANOVA) followed by Tukey’s HSD test with α = 0.05 with the help of MINITAB (v. 19.0) program.
Relevance. The main areas under vegetables, including onions, are located in the south of Russia. Inclusion of vegetables in the list of food safety products with a threshold value of 90% will significantly increase the responsibility of agricultural workers at all levels for the production and sale of vegetable products. The purpose of the research is to justify the feasibility and effectiveness of cultivating promising varieties and hybrids of onions during irrigation in the Lower Volga region to obtain yields of 150 or more t/ha of high-quality products.
Methods. For the first time in the area of chestnut soils, comprehensive scientific research was conducted on resource-saving techniques to increase the productivity of a vegetable crop in an extremely arid climate by regulating the physiological and biological processes during drip irrigation, and a system was developed for applying these techniques. Research in the experiment was carried out according to generally accepted methods.
Results. The most significant increase in the onion crop was obtained on the variants of the complex application of the studied agricultural methods and amounted, on average, for 2011...2016 with an irrigation regime of 75...75...75% of HB on the standard variety Volgodonets – 159%, relative to the control, on a promising hybrid Octant F1 – 118%, on the hybrid – 125%. With the regime of 70...80...75% of HB on the Volgodonets standard grade – 155%, relative to control, on the promising Oktant F1 hybrid 113%, on the Valero F1 hybrid – 115%. When calculating the cultivation efficiency of this crop, economic data were obtained, the value of which allows us to conclude that when planning the growth of onion production efficiency, agricultural producers are recommended to introduce agricultural technology with a profitability of 253.63%: promising hybrid Octant F1, irrigation mode – differentiated, background N450P180K135+Mortar+Energy-M. Against this background, in the context of research on the variety and hybrids, the maximum return on production costs is 3.2 rubles. An analysis of data on a combination of crop-forming factors showed that for onions when cultivating promising hybrids Octant F1 and Valero F1, when planning yields of 130 and 150 t/ha, it is necessary to maintain a moisture level of 70...80...75% HB, and when grown without fertilizers and when planning 110 t/ha it is enough to create a permanent irrigation regime.
Relevance. Garden bean Phaseolus vulgaris L. is a functional food product; a source of complete plant protein; part of modern ecological farming systems; may be of high importance for the food, economic and environmental security of the West Siberian region.
Methods. The experimental part of the work was carried out in 2016-2017 in the laboratory of selection and seed production of field crops of S.I. Leontiev of the Omsk State Agrarian University. Material for the study were six varieties of beans vegetable of destination, of which four varieties breeding Omsk State Agrarian University and two varieties of foreign selection. Over the years, studies of the varieties of beans vegetable selection Omsk State Agrarian University exceeded the grade standard of the Siberian and Polka yield, number of beans per plant, weight of seeds per plant.
Results. The results of the studies show that at different seeding rates the productivity of green beans and seeds in the studied varieties was different. The highest yield of green beans and seed yields productivity was obtained in the Pamyati Ryzhkovoy variety with a seeding rate of 13 PCs/m2 – 585.8 g/m2 and 647.5 g/m2 . The dependence of yield on the hydrothermal coefficient was recorded. 2016 year was slightly arid (SCC = 1,1), favorable for the cultivation of beans, as well as in August there were good weather conditions for the maturation of seeds, recorded the highest yield of green beans, which can not be said about 2017 year – arid (SCC = 0,72).
HORTICULTURE, VITICULTURE
Relevance. Applying exogenous auxins to the cuttings of grapevines is a common practice in viticulture to improve the rooting process. The potassium salt formulations of auxins have been documented to be more, less, or equally efficient as acid formulations in rooting stimulation of cuttings depending on the genetic features of the plant, type and concentration of auxin, type of cuttings, and many other factors.
Methods. The present study aimed at evaluating the effect of potassium salt of indolyl-3-acetic acid (KIAA) on rooting of the hardwood cuttings of two grape cultivars namely, Korinka russkaya and Victoria, which are commonly planted by grape growers of the Tatarstan Republic. The study was conducted in 2018 and 2019 under hydroponic conditions in a controlled-environment growth chamber in Kazan State Agrarian University. The cuttings were treated with 1) KIAA at two concentrations (5,000 and 10,000) ppm; 2) β-indolyl-butyric acid (IBA) 3,000 ppm (as a check treatment) and 3) distilled water as a control.
Results. Based upon the overall results, KIAA significantly improved the rooting process of both investigated cultivars. Rooting percentage, average number of roots on cuttings as well as the quality of the root system was enhanced with increasing auxin concentration up to 10,000 ppm. IBA also improved the rooting quality parameters over the controls. The two grape cultivars differed significantly in their rooting capacity: cuttings of Korinka russkaya in both years had greater values of all the studied parameters compared with those of Victoria cultivar except for the callusing percentage, which was higher in Victoria.
AGROCHEMISTRY
Relevance. Allium cepa L. is considered to be one of the most important agricultural crops in most countries of the world. High nutritional value is especially pronounced in salad onion which vegetation needs high temperature and significant insulation.
Material and methods. The first biochemical characteristics are given for 9 Crimean salad onion genotypes and varieties (red onions Festivalny, Yaltinsky plus, Yaltinsky foros, Yaltinsky rybin, Yaltinsky 6А, Yaltinsky 7А, Yaltinsky 8А and yellow cultivars Kendy and Bean promine) with the comparison with the appropriate data for popular Italian sweet onion cultivar Tropea and semi-pungent varieties grown in Moscow region, Italy and Stavropol region (Zolotnichok, Cherny prince).
Results. Warm climate is shown to increase the amount of antioxidants, monosaccharides and organic acids in onion bulbs. Compared to the Italian Tropea variety Crimean genotypes were characterized by higher levels of ascorbic acid (12.8±1.4 mg/100 g fresh weight) and organic acids (1.58±0.03 mg malic acid per g of dry weight), relatively similar levels of polyphenols (21.0±2.3 mg-eq Gallic acid per g of dry weight), and quercetine. (3.09±0.42 mg-eq Gallic acid per g of dry weight) and antocyanines (2.78±1.03 mg/g fresh weight). New genotypes Yaltinsky 6A, Yaltinsky 7A, Yaltinsky 8A were shown to accumulate higher levels of antioxidants. A direct correlation between the peel/inner layers ratio of antioxidant activities with the appropriate ratio for polyphenols was demonstrated (r=+0.93). A direct correlation between flavonoids content in peel and inner layers was also revealed (r=+0.83). Polyphenols and flavonoids ratios between peel and inner layers were shown to be higher for the Crimean genotypes compared to semi-pungent Moscow region varieties which indicates the prospects of utilization of the Crimean onion peel in production of functional food products with elevated levels of antioxidants.
RECOVERY, RECULTIVATION AND PROTECTION OF LANDS
Relevance and methods. The article presents the results of research of various methods of basic soil preparation for melons planting for commercial purposes after a fish pond. The trial scheme covered the study of two variants: dumped tillage single-furrow plow (traditional), used to proceed in the farming unit, and sweep blade tillage with subsurface plow (proposed). In the course of scientific research there were determined agrophysical properties of soil, moisture content, contamination of crops (weediness), yielding capacity and profitability.
Results. It was found that the lowest bulk density of soil of 1.12 and 1.15 t/m3 was in the layers of 0.0-0.1 and 0.1-0.2 m after carrying out of the dumped tillage. When carrying out sweep blade tillage, the bulk density of soil of 1.17 t/m3 was obtained only in the upper layer of 0.0-0.1 m, in subsequent layers the value of bulk density of soil significantly increased from 1.44 (0.1-0.2 m) to 1.56 t/m3 (0.3-0.4 m). On average the indicators of natural soil moisture were in 1.2-1.3 times higher, and the deposit of moisture was in 1.1-1.5 times higher in the variant with subsurface plow treatment of the soil. For the melon crops cultivated according to traditional technology, there was a significant decrease in 1.8 times of the number of weeds and in 1.7 -times of their raw weight, compared with the proposed technology. The yielding capacity of melon of Lada variety was 43.9 t/ha according to the traditional technology, and 48.4 t/ha according to the proposed technology, profitability was 161.3% and 185.8% respectively.
AGRICULTURALMANAGEMENT
Relevance. The structure of the food market is represented by various types of products, of which the largest share is taken by the fruit and vegetable sector. In the conditions of a tense political situation in the world and the establishment of barriers in foreign trade, agriculture is a strategically important branch of the Russian economy. Today, the fruit and vegetable sector of the Russian economy does not fully satisfy the needs of the population for vegetables and fruits. This is evidenced by the fact that the domestic market does not provide the population with high-quality vegetables and fruits, creates favorable conditions for filling it with foreign goods, which constitute about 35% of the consumer basket of Russians. All this leads to the need for additional analysis to identify trends in the development of the Russian market for fruits and vegetables and to identify priority areas for its development.
Methods. The purpose of the article is to conduct an analysis of the main trends in the development of the Russian fruit and vegetable market, in order to determine the priority areas of its operation. The basis of the study was the statistical data of the customs authorities of the Russian Federation on the import and export of fruits and vegetables, as well as the federal service of state statistics on the volumes of production and consumption of fruits and vegetables in Russia.
Results. As a result of the analysis of the state of the fruit and vegetable market in Russia in 2011-2018, carried out in the article. It can be stated that the population is experiencing a shortage of consumption of fruits and vegetables. Over the past eight years, imports exceeded exports in the structure of commodity circulation of fruits and vegetables, which indicates the dependence of the national market on foreign goods. The state of the fruit and vegetable market is influenced by the following factors: the level of development of the logistics infrastructure, material and technical equipment of enterprises, as well as the presence of sanctions and counter sanctions.
Relevance and methods. A food security is determined energy value of food (calorie) . Being a energy characteristic of food, calorie is determined necessaric energy reserve of lifework . Using calories as some energetic criterion fof food security let to do simplest and availiablest assessments of forecast. Assessing and comparing a price dynamics of animal and plant calories may use for modeling a mechanism of food security. Purpose of research - analysis of price of food calories in Russia.
Results. Based a energy methods and Rosstat data caloric value of food produced and consumed iwas calculated for period 1990-2017 years of the Russian Federation . A food safety criterion is proposed. Showed double reserve of caloric for consumation of Russian population. Rubles caloric value equivalent was proposed, price calculations and analysis of price dynamics by type of food are carried out.
ISSN 2618-7132 (Online)